Skeletal design remote antenna with onboard amplifier ideal for long cable runs, phantom powered from Venue, UMC16 or Bias T. The ALP Series antennas are a Log Periodic Dipole Array (LPDA) design that provides a useful directional pattern over a broad frequency bandwidth.
The ALP650 Series antennas have been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. However, there is no guarantee that interference will not occur in a particular installation. The antenna generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause interference to radio receivers. Changes or modifications to this equipment not expressly approved by Lectrosonics, Inc. could void the user’s authority to operate it.
The ALP Series antennas are a Log Periodic Dipole Array (LPDA) design that provides a useful directional pattern over a broad frequency bandwidth. Many “gain antennas” (those designs with a directional pattern) are limited in bandwidth, making them awkward for use in multi-channel wireless systems and with frequency agile wireless systems. With VSWR below 2:1 from 450 to 862 MHz, the broad bandwidth of the ALP Series covers a broad section of the band used for Lectrosonics wireless microphone and IFB systems, yet still provides the directional pattern needed to cover long distances. All ALP Series antennas are constructed of 1/8” FR4 fiberglass circuit board material and are extremely rugged. The ALP620 and ALP650 Series antennas include a protective cover over the BNC connector, making them suited for field production, while the more economical ALP500 is better suited for indoor installation. The perforated body of the ALP620 makes it resistant to wind loading outdoors. The ALP650 models are “receive only” models, featuring a built-in amplifier with adjustable gain for use with long coaxial cable runs and/or RF splitters. The antennas can be mounted horizontally or vertically by removing four screws and repositioning the mounting block. This helps to position the antenna away from nearby reflective surfaces to preserve more of the natural pattern of the LPDA design.
Versatile Mounting Block
Adjusting Gain on the ALP650 Amplifier
+12 dB with 0dB attenuator
Third Order Intercept
+27 dBm @ input (+41 dBm output)
+7dBi (isotropic),+4dBd (over dipole
1.2 Watt nominal (switching regu
12 oz. (all versions)
8V to 16V DC at the input jack;
DC voltage supplied via coaxial cable by
VRM input jack or BIAS-T power inserter(70 to 80 mA)
ALP650L/E (RoHS compliant) 470.000 - 700.000 MHz
ALP650M/E (RoHS compliant) 537.000 - 770.000 MHz
ALP650H/E (RoHS compliant) 640.000 - 870 .000 MHz